Inzonex

Industrial Heat-Loss & CO₂ Savings Study

Updated 11 June 2026 · ASTM C680 / ISO 12241 method

A one-minute remote study for any hot plant — no site visit. List your hot equipment, pick your fuel, and see the energy, money and CO₂ avoided that Inzonex modular removable insulation would save, with payback. Export it as an ESG/CBAM report.

Direct answer: bare hot surfaces lose roughly 1,000–2,500 W/m² by convection and radiation. Removable insulation cuts that by up to 90% and keeps the outer surface ≤45 °C (touch-safe). On continuously-running equipment, payback is usually under two years. Fill the table below for your own number.

Mostly bare pipework? Inzonex also insulates hot pipes — use the dedicated pipe heat-loss calculator for loss per metre by DN size and temperature.

1 · List your hot equipment

Tick what you run, enter the rough bare-surface area (m²), surface temperature (°C) and quantity. Add your own rows for anything not listed. All figures are indicative and confirmed by a short survey before quote.

EquipmentArea m²°CQty

2 · Operating & fuel inputs

3 · Your savings

Get an exact quote for your plant

We'll reply with an exact quote and a PDF breakdown of your result (kW, MWh/yr, CO₂, payback). One email — no spam, unsubscribe anytime.

Free · ASTM C680 / ISO 12241 · ≤45 °C touch-safe surface · UK Patent GB2508992.1

Method & assumptions — FAQ

How is the heat loss calculated?

Each surface uses the ASTM C680 / ISO 12241 model — combined convection (0.5 m/s air) and radiation from the bare surface, versus the same surface under 50 mm mineral-wool removable insulation (outer temperature solved iteratively, emissivity 0.85). The saved flux × area × hours is the annual saving.

How is CO₂ avoided calculated?

Saved heat ÷ system efficiency = fuel energy; × the published emission factor for your fuel (natural gas ≈0.202 kg CO₂/kWh; others from IPCC / DEFRA stationary-combustion factors). Result = tonnes CO₂ avoided per year — the figure used for ESG and CBAM reporting.

What does it cost and what's the payback?

Investment is estimated from the insulated area; payback is investment ÷ annual energy saved. On hot, long-running surfaces payback is typically under two years, sometimes 9–11 months. Exact pricing is confirmed after a short survey.